JP3091596B2 - Fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric fan whose operation is controlled by room temperature.

[0002]

2. Description of the Related Art In recent years, a fan has been developed in which a temperature sensor is housed inside a fan main body, and based on the output of the temperature sensor, the blowing air is varied according to the room temperature. However,
Because the temperature sensor is housed inside the fan body,
Because it is affected by the heat of the electronic components that control the blower fan drive motor and the like, and because the room temperature is detected through the outer shell of the fan body, the room temperature cannot be detected accurately, and optimal air volume control is performed. There were drawbacks that could not be done.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a fan capable of detecting the room temperature more accurately.

[0004]

SUMMARY OF THE INVENTION The present invention provides a base, a fan head supported on the base and having an electric motor for driving the rotation of a blower fan, a temperature sensor for detecting a change in room temperature, and a temperature sensor. And a control circuit for controlling the electric motor based on the output, wherein a storage section for storing the temperature sensor is formed in a power cord storage chamber formed in the base, and the storage section is communicated with outside air.

[0005]

According to the present invention, since the temperature sensor is stored in the storage portion communicating with the outside air, the room air circulates in the storage portion, and the temperature sensor detects the change in the room temperature quickly and accurately. . Further, dust that enters the base via the storage section enters the power cord storage chamber, so that electric components for controlling the electric motor and the like are not adversely affected.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below in detail with reference to FIGS.

Reference numeral 1 denotes a stand, which supports the elevating column 2 so as to be able to move up and down, and the stand 1 and the elevating column 2 constitute a base 3. Reference numeral 4 denotes a neck piece supported on the upper part of the elevating column 2 so as to be capable of adjusting the elevation angle. The neck piece houses a motor (not shown) for oscillating the right and left of a fan head 5 to be described later. Reference numeral 5 denotes a fan head rotatably supported by the neck piece 4 in the left-right direction. An electric motor for rotating and driving the blower fan 6 and an up / down oscillating motor for pointing the head 5 vertically. (Not shown)). Reference numeral 7 denotes a guard mounted on the fan head 5 and surrounding the blower fan 6.

Reference numeral 8 denotes an operation unit formed on the stand 1.
Reference numeral 9 denotes a power switch for controlling the driving of the electric motor. When the power switch 9 is turned on, automatic operation is performed, and the electric motor is driven at a rotation speed corresponding to the detected temperature based on an output of a temperature sensor 19 described later. ing. Reference numeral 10 denotes a mode changeover switch. When the temperature detected by the temperature sensor 19 rises within a predetermined time when the mode changeover switch 10 is operated, a good night operation in which the motor is driven to rotate at the time when the temperature rises by a certain amount and a temperature detected by the temperature sensor 19. And an automatic operation for blowing air according to the air conditioner. In the sleep operation, the motor is driven at a lower rotational speed than in the automatic operation in accordance with the temperature detected by the temperature sensor 19.

Reference numeral 11 denotes an air volume adjusting switch for varying the number of revolutions of the electric motor to adjust the air volume. Reference numeral 12 denotes an intermittent operation switch, which intermittently operates the electric motor so as to blow air almost naturally. Reference numeral 13 denotes a timer switch which stops driving of the electric motor after a time set by the operation. Reference numeral 14 denotes a swing adjustment switch which controls the driving of the left and right swing motor and the up and down swing motor. A receiving unit 15 receives a control signal from a transmitter (not shown).

Reference numeral 16 denotes a power cord storage chamber formed at the rear of the stand 1, and a lower surface opening is closed and opened by a lid 17. 18 is provided in the power cord storage room 16,
A mounting member for mounting the temperature sensor 19 to the stand 1, a surrounding portion 20 for surrounding the temperature sensor 19, a flat plate portion 23 having a plurality of ribs 22 for holding lead wires 21 of the temperature sensor 19, A fixing portion 25 inserted into a boss 24 formed on the stand 1 to position the mounting member 18, and a back cover 26 for closing the lower surface opening of the stand 1 is screw-fixed to the boss 24,
The mounting member 18 is sandwiched between the stand 1 and the back cover 26.

The surrounding bending portion 20 includes a rising piece 27 erected from the flat plate 23, a temperature sensor 19 mounting piece 28 formed in a horizontal direction from the rising piece 27, and a lower part from the upper end of the rising piece 27. The plurality of engaging pieces 29 are formed toward the power cord storage chamber 16 so that the surrounding flexible portion 20 is exposed to the outside from the power cord storage chamber 16 through an opening formed corresponding to the power cord storage chamber 16. . The space surrounded by the surrounding flexure 20 is a storage space for the temperature sensor 18, and communicates with the outside via a gap 30 formed between the rising piece 27 and the engaging piece 29 and between the engaging pieces 29. It has become. The outer diameter of the surrounding portion 20 is formed to be larger than the inner diameter of the opening of the stand 1, and is locked in the opening by the elasticity of the rising piece 27 and the engaging piece 29. 31 is an encircling portion of the flat plate portion 23
An opening formed at a position corresponding to 20 guides dust and the like that have entered the flexible portion 20 through the gap 30 to the power cord storage chamber 16.

When the power switch 9 is operated, an automatic operation is performed, and air is blown at an air blowing amount according to the room temperature detected by the temperature sensor 19. Since the temperature sensor 19 communicates with the outside air via the gap 30 formed in the surrounding portion 20, it is possible to reliably detect the room temperature and its change.

Further, when the mode selection switch 10 is operated to select the sleep operation, the timer operation of the air conditioner is stopped, and when the room temperature rises by a predetermined temperature, the temperature sensor 19 detects the temperature change and automatically starts the operation. Start.

When the power cord is not used, the power cord is stored in the power cord storage chamber 16. However, the lead wire 21 of the temperature sensor 19 is locked by the rib 22 of the flat plate portion 23 and is covered by the flat plate portion 23. There is no possibility that the lead wire 21 is pulled by disconnection of the power cord or the like, and the lead wire 21 is disconnected.

Further, dust and the like enter the stand 1 through the gap 30 provided in the surrounding portion 20, but the dust and the like enter the power cord storage chamber 16, so that the lid closing the power cord storage chamber 16 is closed. By opening 17, dust and the like can be easily discarded.

A second embodiment of the present invention will be described in detail with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Reference numeral 32 denotes a power cord storage room 16 on the upper surface of the stand 1.
The stepped portion 33 formed at the lower portion of the body to be fitted into the opening formed in correspondence with the opening abuts on the periphery of the opening to prevent downward movement. Numeral 34 denotes a plurality of slits formed in the body 32.
The space for accommodating the temperature sensor 19 is communicated with the outside air to improve the followability of the temperature sensor 19 with respect to room temperature.

Reference numeral 35 is provided in the power cord storage room 16,
A mounting member for mounting the temperature sensor 19 on the stand 1. The mounting member has a locking claw 36 that engages with a locking hole formed below the body 32. Are engaged and fixed between the boss 24 and the back cover 26.
Reference numeral 37 denotes a locking piece formed on the mounting member 35, which fixes a lead wire 38 connecting the temperature sensor 19 and a circuit board (not shown). 39 is a side wall integrally formed on both sides of the mounting member 35. A lead wire 38 is provided in a space surrounded by the side wall 39, the mounting member 35 and the stand 1, and a power cord is inserted into and removed from the power cord storage chamber 16. Sometimes the power cord is a lead wire
The lead wire 38 is prevented from being broken by the wire 38.

When the power switch 9 is operated, automatic operation is performed, and air is blown at an air blowing amount according to the room temperature detected by the temperature sensor 19. Since the temperature sensor 19 communicates with the outside air through the slit 34 formed in the body 32, it is possible to reliably detect the room temperature and its change.

When the mode selection switch 10 is operated to select the sleep operation, the timer operation of the air conditioner is stopped, and when the room temperature rises by a predetermined temperature, the temperature sensor 19 detects the temperature change and automatically starts the operation. Start.

When not in use, the power cord is stored in the power cord storage chamber 16, but the lead wire 38 of the temperature sensor 19 is locked by the locking piece 37 of the mounting member 35, and is covered by the mounting member 35 and the side wall 39. Therefore, the lead wire 38 is not pulled by the insertion and removal of the power cord, and the wire is not broken.

Further, a slit 34 provided in the cover 32 with dust or the like is provided.
In some cases, dust and the like may enter the temperature sensor storage chamber 19 through the interface, and may leak into the stand 1. However, since the dust and the like enter the power cord storage chamber 16, the lid 17 that closes the power cord storage chamber 16. By opening the opening, dust and the like can be easily discarded.

[0023]

As described above, according to the present invention, the accommodating portion of the temperature sensor is communicated with the outside air, so that it is possible to improve the responsiveness to a change in room temperature, and to reliably perform air blowing in accordance with the room temperature. Can be made. The storage part of the temperature sensor
Since the power cord storage chamber is formed, dust and the like can enter the cord storage chamber and can be easily disposed of by opening the lid that closes the cord storage chamber, thereby preventing adverse effects on electrical components. And so on.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing a mounted state of the temperature sensor.

FIG. 3 is a sectional view of a main part showing a mounting state of the temperature sensor.

FIG. 4 is a sectional view of a main part showing a mounting state of the temperature sensor.

FIG. 5 is a plan view of a main part showing a mounting state of the temperature sensor.

FIG. 6 is a side view of the appearance.

FIG. 7 is a plan view of the operation unit.

8 shows a second embodiment of the present invention, and is a cross-sectional view taken along the line AA of FIG.

FIG. 9 is a sectional view taken along the line BB of FIG. 10;

FIG. 10 is a bottom view of the main part.

[Explanation of symbols]

 3 Base 5 Fan head 6 Blower fan 16 Power cord storage room 19 Temperature sensor

Claims (1)

(57) [Claims] 1. A base, a fan head supported on the base and having an electric motor for driving a blower fan to rotate, a temperature sensor for detecting a change in room temperature, and an electric motor based on an output of the temperature sensor. An electric fan, comprising: a control circuit for controlling; and a storage section for storing a temperature sensor formed in a power cord storage chamber formed in the base, and the storage section is communicated with outside air.